For Montabert HC50 rock drills, part number 86344199, the distributor plate in the hydraulic rotary motor.

Distributor Plate 86344199 for Montabert HC50 Rock Drill Hydraulic Rotary Motor

The distributor plate (part number 86344199) is used in the hydraulic rotary motor of the Montabert HC50 rock drill. It is a key hydraulic component responsible for distributing oil flow inside the rotary motor, helping the motor maintain smooth and stable rotation during drilling.

This plate controls the direction and circulation of hydraulic oil between internal motor chambers, ensuring efficient power transmission and reliable rotary performance. Proper oil distribution is important for maintaining motor efficiency, reducing pressure loss, and protecting internal rotating parts from abnormal wear.

Manufactured from high-strength alloy steel, the distributor plate is precision-ground and carefully machined to provide accurate oil passage sealing and stable hydraulic performance under high pressure and continuous working conditions.

Product Details

• Part Number: 86344199
• Machine Model: Montabert HC50
• Product Name: Distributor Plate
• Application: Hydraulic rotary motor
• Material: High-strength alloy steel
• Condition: New replacement part

Main Features

• Precision-machined oil distribution surface
• Ensures stable hydraulic oil circulation inside the motor
• Helps maintain smooth and efficient rotation
• Good wear resistance under high-pressure conditions
• Reduces internal leakage and hydraulic power loss

Applications

Suitable for:

• Underground mining
• Quarry drilling
• Tunneling work
• Heavy-duty rock drilling operations

Used in the hydraulic rotary motor system of the Montabert HC50 rock drill.

From Our Experience

When the distributor plate becomes worn, the rotary motor may lose efficiency, develop unstable rotation, or experience internal hydraulic leakage. In some cases, poor oil distribution can also increase wear on gears, bearings, and other motor parts. Replacing the plate before serious wear occurs helps keep the drill working reliably.

Why Quality Matters

A high-quality distributor plate helps:

• Improve hydraulic motor efficiency
• Reduce oil leakage and pressure loss
• Extend rotary motor service life
• Keep drilling performance stable during long working hours

For continuous drilling operations, stable hydraulic oil control is important for maintaining reliable rotation and reducing unexpected downtime.